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powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs
In PTRACE_GET/SETVSRREGS, we should be using the thread we are ptracing rather than current. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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1 changed files with 2 additions and 2 deletions
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@ -375,7 +375,7 @@ static int vsr_get(struct task_struct *target, const struct user_regset *regset,
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flush_vsx_to_thread(target);
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for (i = 0; i < 32 ; i++)
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buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET];
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buf[i] = target->thread.fpr[i][TS_VSRLOWOFFSET];
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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buf, 0, 32 * sizeof(double));
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@ -394,7 +394,7 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset,
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ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
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buf, 0, 32 * sizeof(double));
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for (i = 0; i < 32 ; i++)
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current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
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target->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
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return ret;
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